Mr. Tierney, my dyslexic Creative Writing teacher from junior college. He came in on the first day and misspelled his name. He used that to explain two things -- what dyslexia is and how irrelevant spelling/punctuation is to good writing -- that spelling/punctuation are mechanical processes you do with a dictionary and style book after finishing a good piece of writing. Something can be technically perfect and dull as molasses, or brilliant and just need a proofreader.